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https://issues.apache.org/jira/browse/CALCITE-6324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mihai Budiu updated CALCITE-6324:
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Fix Version/s: 1.37.0
> Type inferred for result of STDDEV, VAR_SAMP, etc. is incorrect
> ---------------------------------------------------------------
>
> Key: CALCITE-6324
> URL: https://issues.apache.org/jira/browse/CALCITE-6324
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.36.0
> Reporter: Mihai Budiu
> Assignee: Mihai Budiu
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.37.0
>
>
> These functions are all use the same type inference algorithm, essentially
> the algorithm used by AVG.
> But if the values processed are decimal, STDDEV (and others) need much higher
> precision to represent the result. (I am not sure that the inference is right
> for integer types either, btw.)
> This surfaced during the implementation of a fix for [CALCITE-6322]: if we
> use the type inferred for these functions, the result overflows and causes a
> runtime exception.
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